Method and device for eliminating hidden dangers of faulty protection of power line distance iii section
A power line and distance technology, applied in the field of electric power, can solve problems such as power grid blackout accidents, and achieve the effect of preventing malfunctions
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[0043]The method and device for eliminating hidden dangers of misoperation of the protection of the distance section III of the power line provided by the present invention can judge the current state of the circuit according to the electrical characteristics of the power line. For tripping, if the power line is overloaded, the method and device can block phase-to-phase distance or grounding distance section III protection to prevent its misoperation. Avoid blockage of phase distance or grounding distance section III protection incorrect action, etc., resulting in large-scale power outage accidents in the power grid.
[0044] figure 1 It is a schematic flow chart of the first embodiment of the method for eliminating hidden dangers of misoperation of protection of power line distance section III provided by the present invention. The procedure of this method is as follows figure 1 shown, including:
[0045] In step S101, phase-to-phase distance or ground distance stage III p...
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